摘要:
The object is to eliminate the difference in offset of work rolls at the upper and lower and left and right of the rolling mill occurring in the kiss roll state of the zero point adjustment work before rolling or during rolling and eliminate the problem of warping of the flat products or meander or camber due to the thrust force acting between the work rolls and backup rolls. For this, there are provided a rolling mill for flat products having a pair of upper and lower work rolls driven by electric motors, a pair of upper and lower backup rolls contacting the work rolls and supporting the rolling reaction force applied to the work rolls, and devices for applying substantially horizontal direction external forces to the upper and lower work rolls, the rolling mill for flat products characterized in that a direction of horizontal direction external forces applied to the work rolls is the same direction as the horizontal direction force component of the rolling reaction force applied to the work rolls due to the rolling direction offset and in that the horizontal direction external forces applied to the work rolls are supported by rolling mill housing project blocks or work roll chock support members, and a rolling method for flat products using the same.
摘要:
The invention relates to a rolling device (1) comprising two working rollers (2) which are respectively mounted in a roll stand (4) by means of working roller inserts (3). The working roller inserts (3) in the roll stand (4) can be locked and unlocked by means of at least one working roller locking device (5). At least two other rollers (6), especially two support rollers are respectively mounted in the roll stand by means of other inserts (7); the position of at least one of the working rollers (2) and at least one of the other rollers (6) in the roll stand (4) can be adjusted, especially in a vertical direction, in relation to the other working roller (2) or other roller (6) in order to adjust the desired rolling gap. The working rollers (2) are provided with means (8) for axial displacement, enabling the working rollers (2) to placed in a desired axial position in relation to the roll frame (4) and maintained in said position. The working rollers (2) are actively connected to bending means (9) so that they can be impinged upon by a bending moment. In order to improve the adjustability of the rolling device to achieve a high rise, the axial displacement means (8) are arranged or operate between the roll stand (4) and the working roller locking device (5) and the bending means (9) are disposed or operate between the working roller insert (3) and the other working roller insert (7).
摘要:
The invention relates to an apparatus for rolling a metallic product comprising a mill frame (18), a first cantilever roll shaft (19), a second cantilever roll shaft (20), both said roll shafts (19, 20) being mounted on the mill frame (18) with two sets of bearing assemblies (38, 39, 40, 41), a first roll-ing ring (21) mounted on the first roll shaft (19), a second rolling ring (22) mounted on the second roll shaft (20) said rolling rings (21, 22) forming a nip (23) in between, at least one ring (29) arranged with its inside surface (43) in rolling contact with the first roll shaft (19) and with at least one intermediate roll (27), which intermediate roll (27) is ar-ranged also in rolling contact with the second roll shaft (20) and at least one drive end (42) arranged at the end of either roll shafts (19, 20) for driving the mill (16). The in-vention also relates to a method of producing a metallic product.
摘要:
Disclosed is a device for bending the rolls in a roll stand comprising several rolls. Said device is provided with bending blocks which are fastened between the built-in roll parts and the stand windows at the delivery end and the discharge end, the top and bottom bending blocks being connected by means of piston cylinders and/or a vertical positioning mechanism, preferably a spindle-type lifting gear unit. A bending force can be introduced into the bending blocks (5, 5a) which are connected on the same side via a piston cylinder (7) while the opposite bending blocks (5', 5a') can be positioned and locked via the spindle-type lifting gear unit (10).
摘要:
Die Biegevorrichtung für die Walzen eines Mehrwalzengerüstes ist mit in den Ständerfenstern blockweise angeordneten Stellgliedern ausgerüstet, die auf die Walzeneinbaustücke Biegekräfte zum positiven und negativen Biegen der Walzen, insbesondere der Arbeitswalzen ausüben.
摘要:
The invention relates to a multiple-roll rolling mill for strip material, comprising working rolls (1,2) which are supported on support rollers (6, 7, 8, 9-16b) through optional intermediate rolls (4,5). Said support rollers are rotationally mounted together on a support axle (17,18,19,20), respectively, this support axle being divided into at least three longitudinal sections (L1,L2,L3). The inventive rolling mill also comprises at least one actuating device which is allocated to at least one of the support axles (18) and comprises actuator drives (35,36,37), each of which is allocated to one of the longitudinal sections (L1, L2, L3) of the support axle (18), respectively and subjects the corresponding longitudinal section (L1,L2,L3) to a transversal force in relation to the longitudinal direction of the support axis (18), through a group (G1,G2,G3) of actuating mechanisms (24,25,26;27,28;29,30,31) which are intercoupled by a coupling member (32,33,34) in relation to their movement relative to the support axle (18), in order to correct the roll gap (3) between the working rolls (1,2).
摘要:
The invention relates to a roll stand, especially a duo or quarto roll stand, comprising bending and balancing devices (7) for axially displaceable rollers (4, 5). A fixed guide block (6) is secured on both sides in the window (1) of each roller stand (2) on the same level as the roller inserts (3). The force of the bending cylinders (8) is transmitted to the roller inserts (3) which are guided in the direction of the axis in a vertically displaceable manner. The length of the bending cylinders (8) on the upper and lower piston end is respectively greater than the width thereof and the longitudinal axis of the bending cylinders extends in the direction of axial displacement of the rollers (4,5).
摘要:
The present invention relates to a rolling mill, a gap-removing apparatus for roll bearing boxes, a rolling method, a modifying method for a rolling mill, and hot finish tandem rolling equipment, and is characterized in that there are provided roll bearing boxes for rotatably supporting work rolls in a housing, a first pushing device for applying a vertical balancing force or bender force to the work rolls through the roll bearing boxes, and a second pushing device for applying a pushing force in a direction orthogonal to the work roll axis in a horizontal plane to the roll bearing boxes, and the first pushing device and the second pushing device are disposed to be offset from each other in the work roll axis direction. Alternatively, the invention is characterized in that the second pushing device is disposed between a plurality of the first pushing device in the work roll axis direction. Gaps at the roll bearing boxes in the rolling mill can be removed without enlarging the equipment in size.
摘要:
In order to control and optimize, without stopping production, bowing in the outer wall (8/10) of a calender roll (1) in which bowing is produced by the action of pressure on an incompressible liquid (12) enclosed in the roll (1), the invention proposes that, based on error signals generated from continuous thickness measurements and from at least one other quality characteristic, the temperature of the liquid is controlled and the nip modified to correct for deviations from the correct thickness.
摘要:
A combined work roll crossing, offsetting, bending and work roll axial shifting system for a rolling mill having a housing member on each side and at each end of each work roll, Mae West blocks mounted on the housing members, roll chocks surrounding the ends of the work rolls, a pusher member mounted on each of the Mae West blocks and movable into and out of contact with the corresponding roll chock, a first hydraulic piston/assembly mounted on each of the housing posts and connected to the corresponding pusher member to move the pusher member into contact with a corresponding chock and to effect crossing or offsetting of a corresponding work roll, a pair of roll bending second piston/cylinder assemblies mounted in each Mae West block such that the pistons contact the corresponding roll chocks to move the chocks toward or away from the corresponding work roll when the second cylinders are actuated, a third set of cylinder/piston assemblies mounted in the Mae West blocks for balancing the backup rolls, and a fourth set of piston/cylinder assemblies mounted on the housing, parallel to the work roll axis, and the pistons thereof being connected to the pusher members to shift the pusher members and associated chocks and work rolls in an axial direction of the work rolls.